diff options
Diffstat (limited to 'qemu/pc-bios/s390-ccw/bootmap.h')
| -rw-r--r-- | qemu/pc-bios/s390-ccw/bootmap.h | 541 |
1 files changed, 0 insertions, 541 deletions
diff --git a/qemu/pc-bios/s390-ccw/bootmap.h b/qemu/pc-bios/s390-ccw/bootmap.h deleted file mode 100644 index bea168714..000000000 --- a/qemu/pc-bios/s390-ccw/bootmap.h +++ /dev/null @@ -1,541 +0,0 @@ -/* - * QEMU S390 bootmap interpreter -- declarations - * - * Copyright 2014 IBM Corp. - * Author(s): Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2 or (at - * your option) any later version. See the COPYING file in the top-level - * directory. - */ -#ifndef _PC_BIOS_S390_CCW_BOOTMAP_H -#define _PC_BIOS_S390_CCW_BOOTMAP_H - -#include "s390-ccw.h" -#include "virtio.h" - -typedef uint64_t block_number_t; -#define NULL_BLOCK_NR 0xffffffffffffffffULL - -#define FREE_SPACE_FILLER '\xAA' - -typedef struct ScsiBlockPtr { - uint64_t blockno; - uint16_t size; - uint16_t blockct; - uint8_t reserved[4]; -} __attribute__ ((packed)) ScsiBlockPtr; - -typedef struct FbaBlockPtr { - uint32_t blockno; - uint16_t size; - uint16_t blockct; -} __attribute__ ((packed)) FbaBlockPtr; - -typedef struct EckdBlockPtr { - uint16_t cylinder; /* cylinder/head/sector is an address of the block */ - uint16_t head; - uint8_t sector; - uint16_t size; - uint8_t count; /* (size_in_blocks-1); - * it's 0 for TablePtr, ScriptPtr, and SectionPtr */ -} __attribute__ ((packed)) EckdBlockPtr; - -typedef struct ExtEckdBlockPtr { - EckdBlockPtr bptr; - uint8_t reserved[8]; -} __attribute__ ((packed)) ExtEckdBlockPtr; - -typedef union BootMapPointer { - ScsiBlockPtr scsi; - FbaBlockPtr fba; - EckdBlockPtr eckd; - ExtEckdBlockPtr xeckd; -} __attribute__ ((packed)) BootMapPointer; - -typedef struct ComponentEntry { - ScsiBlockPtr data; - uint8_t pad[7]; - uint8_t component_type; - uint64_t load_address; -} __attribute((packed)) ComponentEntry; - -typedef struct ComponentHeader { - uint8_t magic[4]; /* == "zIPL" */ - uint8_t type; /* == ZIPL_COMP_HEADER_* */ - uint8_t reserved[27]; -} __attribute((packed)) ComponentHeader; - -typedef struct ScsiMbr { - uint8_t magic[4]; - uint32_t version_id; - uint8_t reserved[8]; - ScsiBlockPtr blockptr; -} __attribute__ ((packed)) ScsiMbr; - -#define ZIPL_MAGIC "zIPL" -#define IPL1_MAGIC "\xc9\xd7\xd3\xf1" /* == "IPL1" in EBCDIC */ -#define IPL2_MAGIC "\xc9\xd7\xd3\xf2" /* == "IPL2" in EBCDIC */ -#define VOL1_MAGIC "\xe5\xd6\xd3\xf1" /* == "VOL1" in EBCDIC */ -#define LNX1_MAGIC "\xd3\xd5\xe7\xf1" /* == "LNX1" in EBCDIC */ -#define CMS1_MAGIC "\xc3\xd4\xe2\xf1" /* == "CMS1" in EBCDIC */ - -#define LDL1_VERSION '\x40' /* == ' ' in EBCDIC */ -#define LDL2_VERSION '\xf2' /* == '2' in EBCDIC */ - -#define ZIPL_COMP_HEADER_IPL 0x00 -#define ZIPL_COMP_HEADER_DUMP 0x01 - -#define ZIPL_COMP_ENTRY_LOAD 0x02 -#define ZIPL_COMP_ENTRY_EXEC 0x01 - -typedef struct XEckdMbr { - uint8_t magic[4]; /* == "xIPL" */ - uint8_t version; - uint8_t bp_type; - uint8_t dev_type; /* == DEV_TYPE_* */ -#define DEV_TYPE_ECKD 0x00 -#define DEV_TYPE_FBA 0x01 - uint8_t flags; - BootMapPointer blockptr; - uint8_t reserved[8]; -} __attribute__ ((packed)) XEckdMbr; /* see also BootInfo */ - -typedef struct BootMapScriptEntry { - BootMapPointer blkptr; - uint8_t pad[7]; - uint8_t type; /* == BOOT_SCRIPT_* */ -#define BOOT_SCRIPT_EXEC 0x01 -#define BOOT_SCRIPT_LOAD 0x02 - union { - uint64_t load_address; - uint64_t load_psw; - } address; -} __attribute__ ((packed)) BootMapScriptEntry; - -typedef struct BootMapScriptHeader { - uint32_t magic; - uint8_t type; -#define BOOT_SCRIPT_HDR_IPL 0x00 - uint8_t reserved[27]; -} __attribute__ ((packed)) BootMapScriptHeader; - -typedef struct BootMapScript { - BootMapScriptHeader header; - BootMapScriptEntry entry[0]; -} __attribute__ ((packed)) BootMapScript; - -/* - * These aren't real VTOCs, but referred to this way in some docs. - * They are "volume labels" actually. - * - * Some structures looks similar to described above, but left - * separate as there is no indication that they are the same. - * So, the value definitions are left separate too. - */ -typedef struct LDL_VTOC { /* @ rec.3 cyl.0 trk.0 for ECKD */ - char magic[4]; /* "LNX1", EBCDIC */ - char volser[6]; /* volser, EBCDIC */ - uint8_t reserved[69]; /* reserved, 0x40 */ - uint8_t LDL_version; /* 0x40 or 0xF2 */ - uint64_t formatted_blocks; /* if LDL_version >= 0xF2 */ -} __attribute__ ((packed)) LDL_VTOC; - -typedef struct format_date { - uint8_t YY; - uint8_t MM; - uint8_t DD; - uint8_t hh; - uint8_t mm; - uint8_t ss; -} __attribute__ ((packed)) format_date_t; - -typedef struct CMS_VTOC { /* @ rec.3 cyl.0 trk.0 for ECKD */ - /* @ blk.1 (zero based) for FBA */ - char magic[4]; /* 'CMS1', EBCDIC */ - char volser[6]; /* volser, EBCDIC */ - uint16_t version; /* = 0 */ - uint32_t block_size; /* = 512, 1024, 2048, or 4096 */ - uint32_t disk_origin; /* = 4 or 5 */ - uint32_t blocks; /* Number of usable cyls/blocks */ - uint32_t formatted; /* Max number of fmtd cyls/blks */ - uint32_t CMS_blocks; /* disk size in CMS blocks */ - uint32_t CMS_used; /* Number of CMS blocks in use */ - uint32_t FST_size; /* = 64, bytes */ - uint32_t FST_per_CMS_blk; /* */ - format_date_t format_date; /* YYMMDDhhmmss as 6 bytes */ - uint8_t reserved1[2]; /* = 0 */ - uint32_t offset; /* disk offset when reserved */ - uint32_t next_hole; /* block nr */ - uint32_t HBLK_hole_offset; /* >> HBLK data of next hole */ - uint32_t alloc_map_usr_off; /* >> user part of Alloc map */ - uint8_t reserved2[4]; /* = 0 */ - char shared_seg_name[8]; /* */ -} __attribute__ ((packed)) CMS_VTOC; - -/* from zipl/include/boot.h */ -typedef struct BootInfoBpIpl { - union { - ExtEckdBlockPtr eckd; - ScsiBlockPtr linr; - } bm_ptr; - uint8_t unused[16]; -} __attribute__ ((packed)) BootInfoBpIpl; - -typedef struct EckdDumpParam { - uint32_t start_blk; - uint32_t end_blk; - uint16_t blocksize; - uint8_t num_heads; - uint8_t bpt; - char reserved[4]; -} __attribute((packed, may_alias)) EckdDumpParam; - -typedef struct FbaDumpParam { - uint64_t start_blk; - uint64_t blockct; -} __attribute((packed)) FbaDumpParam; - -typedef struct BootInfoBpDump { - union { - EckdDumpParam eckd; - FbaDumpParam fba; - } param; - uint8_t unused[16]; -} __attribute__ ((packed)) BootInfoBpDump; - -typedef struct BootInfo { /* @ 0x70, record #0 */ - unsigned char magic[4]; /* = 'zIPL', ASCII */ - uint8_t version; /* = 1 */ -#define BOOT_INFO_VERSION 1 - uint8_t bp_type; /* = 0 */ -#define BOOT_INFO_BP_TYPE_IPL 0x00 -#define BOOT_INFO_BP_TYPE_DUMP 0x01 - uint8_t dev_type; /* = 0 */ -#define BOOT_INFO_DEV_TYPE_ECKD 0x00 -#define BOOT_INFO_DEV_TYPE_FBA 0x01 - uint8_t flags; /* = 1 */ -#ifdef __s390x__ -#define BOOT_INFO_FLAGS_ARCH 0x01 -#else -#define BOOT_INFO_FLAGS_ARCH 0x00 -#endif - union { - BootInfoBpDump dump; - BootInfoBpIpl ipl; - } bp; -} __attribute__ ((packed)) BootInfo; /* see also XEckdMbr */ - -typedef struct Ipl1 { - unsigned char key[4]; /* == "IPL1" */ - unsigned char data[24]; -} __attribute__((packed)) Ipl1; - -typedef struct Ipl2 { - unsigned char key[4]; /* == "IPL2" */ - union { - unsigned char data[144]; - struct { - unsigned char reserved1[92-4]; - XEckdMbr mbr; - unsigned char reserved2[144-(92-4)-sizeof(XEckdMbr)]; - } x; - } u; -} __attribute__((packed)) Ipl2; - -typedef struct IplVolumeLabel { - unsigned char key[4]; /* == "VOL1" */ - union { - unsigned char data[80]; - struct { - unsigned char key[4]; /* == "VOL1" */ - unsigned char volser[6]; - unsigned char reserved[6]; - } f; - }; -} __attribute__((packed)) IplVolumeLabel; - -typedef enum { - ECKD_NO_IPL, - ECKD_CMS, - ECKD_LDL, - ECKD_LDL_UNLABELED, -} ECKD_IPL_mode_t; - -/* utility code below */ - -static const unsigned char ebc2asc[256] = - /* 0123456789abcdef0123456789abcdef */ - "................................" /* 1F */ - "................................" /* 3F */ - " ...........<(+|&.........!$*);." /* 5F first.chr.here.is.real.space */ - "-/.........,%_>?.........`:#@'=\""/* 7F */ - ".abcdefghi.......jklmnopqr......" /* 9F */ - "..stuvwxyz......................" /* BF */ - ".ABCDEFGHI.......JKLMNOPQR......" /* DF */ - "..STUVWXYZ......0123456789......";/* FF */ - -static inline void ebcdic_to_ascii(const char *src, - char *dst, - unsigned int size) -{ - unsigned int i; - for (i = 0; i < size; i++) { - unsigned c = src[i]; - dst[i] = ebc2asc[c]; - } -} - -static inline void print_volser(const void *volser) -{ - char ascii[8]; - - ebcdic_to_ascii((char *)volser, ascii, 6); - ascii[6] = '\0'; - sclp_print("VOLSER=["); - sclp_print(ascii); - sclp_print("]\n"); -} - -static inline bool unused_space(const void *p, size_t size) -{ - size_t i; - const unsigned char *m = p; - - for (i = 0; i < size; i++) { - if (m[i] != FREE_SPACE_FILLER) { - return false; - } - } - return true; -} - -static inline bool is_null_block_number(block_number_t x) -{ - return x == NULL_BLOCK_NR; -} - -static inline void read_block(block_number_t blockno, - void *buffer, - const char *errmsg) -{ - IPL_assert(virtio_read(blockno, buffer) == 0, errmsg); -} - -static inline bool block_size_ok(uint32_t block_size) -{ - return block_size == virtio_get_block_size(); -} - -static inline bool magic_match(const void *data, const void *magic) -{ - return *((uint32_t *)data) == *((uint32_t *)magic); -} - -static inline int _memcmp(const void *s1, const void *s2, size_t n) -{ - int i; - const uint8_t *p1 = s1, *p2 = s2; - - for (i = 0; i < n; i++) { - if (p1[i] != p2[i]) { - return p1[i] > p2[i] ? 1 : -1; - } - } - - return 0; -} - -/* from include/qemu/bswap.h */ - -/* El Torito is always little-endian */ -static inline uint16_t bswap16(uint16_t x) -{ - return ((x & 0x00ff) << 8) | ((x & 0xff00) >> 8); -} - -static inline uint32_t bswap32(uint32_t x) -{ - return ((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) << 8) | - ((x & 0x00ff0000U) >> 8) | ((x & 0xff000000U) >> 24); -} - -static inline uint64_t bswap64(uint64_t x) -{ - return ((x & 0x00000000000000ffULL) << 56) | - ((x & 0x000000000000ff00ULL) << 40) | - ((x & 0x0000000000ff0000ULL) << 24) | - ((x & 0x00000000ff000000ULL) << 8) | - ((x & 0x000000ff00000000ULL) >> 8) | - ((x & 0x0000ff0000000000ULL) >> 24) | - ((x & 0x00ff000000000000ULL) >> 40) | - ((x & 0xff00000000000000ULL) >> 56); -} - -static inline uint32_t iso_733_to_u32(uint64_t x) -{ - return (uint32_t)x; -} - -#define ISO_SECTOR_SIZE 2048 -/* El Torito specifies boot image size in 512 byte blocks */ -#define ET_SECTOR_SHIFT 2 -#define KERN_IMAGE_START 0x010000UL -#define PSW_MASK_64 0x0000000100000000ULL -#define PSW_MASK_32 0x0000000080000000ULL -#define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64) - -#define ISO_PRIMARY_VD_SECTOR 16 - -static inline void read_iso_sector(uint32_t block_offset, void *buf, - const char *errmsg) -{ - IPL_assert(virtio_read_many(block_offset, buf, 1) == 0, errmsg); -} - -static inline void read_iso_boot_image(uint32_t block_offset, void *load_addr, - uint32_t blks_to_load) -{ - IPL_assert(virtio_read_many(block_offset, load_addr, blks_to_load) == 0, - "Failed to read boot image!"); -} - -const uint8_t el_torito_magic[] = "EL TORITO SPECIFICATION" - "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; - -#define ISO9660_MAX_DIR_DEPTH 8 - -typedef struct IsoDirHdr { - uint8_t dr_len; - uint8_t ear_len; - uint64_t ext_loc; - uint64_t data_len; - uint8_t recording_datetime[7]; - uint8_t file_flags; - uint8_t file_unit_size; - uint8_t gap_size; - uint32_t vol_seqnum; - uint8_t fileid_len; -} __attribute__((packed)) IsoDirHdr; - -typedef struct IsoVdElTorito { - uint8_t el_torito[32]; /* must contain el_torito_magic value */ - uint8_t unused0[32]; - uint32_t bc_offset; - uint8_t unused1[1974]; -} __attribute__((packed)) IsoVdElTorito; - -typedef struct IsoVdPrimary { - uint8_t unused1; - uint8_t sys_id[32]; - uint8_t vol_id[32]; - uint8_t unused2[8]; - uint64_t vol_space_size; - uint8_t unused3[32]; - uint32_t vol_set_size; - uint32_t vol_seqnum; - uint32_t log_block_size; - uint64_t path_table_size; - uint32_t l_path_table; - uint32_t opt_l_path_table; - uint32_t m_path_table; - uint32_t opt_m_path_table; - IsoDirHdr rootdir; - uint8_t root_null; - uint8_t reserved2[1858]; -} __attribute__((packed)) IsoVdPrimary; - -typedef struct IsoVolDesc { - uint8_t type; - uint8_t ident[5]; - uint8_t version; - union { - IsoVdElTorito boot; - IsoVdPrimary primary; - } vd; -} __attribute__((packed)) IsoVolDesc; - -const uint8_t vol_desc_magic[] = "CD001"; -#define VOL_DESC_TYPE_BOOT 0 -#define VOL_DESC_TYPE_PRIMARY 1 -#define VOL_DESC_TYPE_SUPPLEMENT 2 -#define VOL_DESC_TYPE_PARTITION 3 -#define VOL_DESC_TERMINATOR 255 - -static inline bool is_iso_vd_valid(IsoVolDesc *vd) -{ - return !_memcmp(&vd->ident[0], vol_desc_magic, 5) && - vd->version == 0x1 && - vd->type <= VOL_DESC_TYPE_PARTITION; -} - -typedef struct IsoBcValid { - uint8_t platform_id; - uint16_t reserved; - uint8_t id[24]; - uint16_t checksum; - uint8_t key[2]; -} __attribute__((packed)) IsoBcValid; - -typedef struct IsoBcSection { - uint8_t boot_type; - uint16_t load_segment; - uint8_t sys_type; - uint8_t unused; - uint16_t sector_count; - uint32_t load_rba; - uint8_t selection[20]; -} __attribute__((packed)) IsoBcSection; - -typedef struct IsoBcHdr { - uint8_t platform_id; - uint16_t sect_num; - uint8_t id[28]; -} __attribute__((packed)) IsoBcHdr; - -/* - * Match two CCWs located after PSW and eight filler bytes. - * From libmagic and arch/s390/kernel/head.S. - */ -const uint8_t linux_s390_magic[] = "\x02\x00\x00\x18\x60\x00\x00\x50\x02\x00" - "\x00\x68\x60\x00\x00\x50\x40\x40\x40\x40" - "\x40\x40\x40\x40"; - -typedef struct IsoBcEntry { - uint8_t id; - union { - IsoBcValid valid; /* id == 0x01 */ - IsoBcSection sect; /* id == 0x88 || id == 0x0 */ - IsoBcHdr hdr; /* id == 0x90 || id == 0x91 */ - } body; -} __attribute__((packed)) IsoBcEntry; - -#define ISO_BC_ENTRY_PER_SECTOR (ISO_SECTOR_SIZE / sizeof(IsoBcEntry)) -#define ISO_BC_HDR_VALIDATION 0x01 -#define ISO_BC_BOOTABLE_SECTION 0x88 -#define ISO_BC_MAGIC_55 0x55 -#define ISO_BC_MAGIC_AA 0xaa -#define ISO_BC_PLATFORM_X86 0x0 -#define ISO_BC_PLATFORM_PPC 0x1 -#define ISO_BC_PLATFORM_MAC 0x2 - -static inline bool is_iso_bc_valid(IsoBcEntry *e) -{ - IsoBcValid *v = &e->body.valid; - - if (e->id != ISO_BC_HDR_VALIDATION) { - return false; - } - - if (v->platform_id != ISO_BC_PLATFORM_X86 && - v->platform_id != ISO_BC_PLATFORM_PPC && - v->platform_id != ISO_BC_PLATFORM_MAC) { - return false; - } - - return v->key[0] == ISO_BC_MAGIC_55 && - v->key[1] == ISO_BC_MAGIC_AA && - v->reserved == 0x0; -} - -#endif /* _PC_BIOS_S390_CCW_BOOTMAP_H */ |